Size of Barbarian Migrations

[Justin I]

Much of the Frankish ‘migration’ is more comparable to that of modern workers moving to another country. They fought for the Romans, and for a long time many went back home (which is shown by the funerary items) although more and more remain within the Empire after retirement. Gradually you sse the original settlements becoming smaller, until the 5th century there is a clear move towards the new Frankish-dominated lands in modern Belgium and France.
The Alans, too, were employed by the Romans in small groups, spread out in time and space.

Would it be fair to apply this description to the Burgundians too? I don't remember reading anything about a large group of Burgundian migrants on the march; they just seem to have appeared on Roman land, with some degree of Roman acquiescence, in the 5th century. And there were othere scattered groups; I think there were some in the big Rhine crossing of 406, there were some fighting as Roman foederati and even some fighting as Attila's allies. That doesn't look like evidence of a firmly organized tribe acting in unison.